What is the experimental principle of the coefficient of friction meter to measure a copper slide?

The experimental principle of the coefficient of friction meter for measuring copper slide plates is based on the following concepts and procedures:

Generation and measurement of friction:

Conceptual basis: When the surfaces of two objects are in contact with each other and are in relative motion or have a tendency to be in relative motion, a force that impedes the relative motion is generated on the contact surfaces, and this force is friction. In the case of copper sliding plates, the contact part of the plate with the measuring device generates friction under specific conditions.

Measurement: Friction gauges typically utilize force sensors to measure the magnitude of this friction. The force sensor senses and records the value of the friction force in real time as the copper slide moves relative to the relevant parts of the measuring device (e.g. slider, etc.).

Applying and determining the positive pressure:

Applying positive pressure: In order to simulate the force on the copper slide in real applications, the measuring device applies a pressure perpendicular to the contact surface of the copper slide, which is referred to as positive pressure. The positive pressure is generated and controlled by mechanical devices (e.g. weights, springs, etc.) or by pneumatic or hydraulic means.

Determination of the value of the positive pressure: The gauge is equipped with the appropriate pressure transducer or the value of the positive pressure is determined accurately by means of known parameters of the mechanical structure and the source of the applied force (e.g. weight of a weight).

Calculation of the coefficient of friction:

Static friction coefficient: When the contact surfaces of the copper slide and the measuring device have just started to have a tendency to move relative to each other but have not yet experienced actual relative motion, the friction measured at this time is static friction. Static friction coefficient is the ratio of static friction and positive pressure. That is, the coefficient of static friction = static friction ÷ positive pressure.

Dynamic friction coefficient: when the copper slide and measuring device contact surface relative movement, the measured friction is dynamic friction. The coefficient of kinetic friction is the ratio of kinetic friction to positive pressure. That is, coefficient of kinetic friction = kinetic friction ÷ positive pressure.

In general, the experimental principle of the friction coefficient measuring instrument to measure the copper skateboard is to accurately measure the static friction and kinetic friction of the copper skateboard under a specific positive pressure, and then calculate the coefficient of static friction and coefficient of kinetic friction of the copper skateboard, in order to assess the lubrication effect of the copper skateboard and other properties.